Here is the deal - my wife needs to leave US for a couple of weeks. She has a J-2 which has expired about 3 years ago, so she'll have to apply for a new J-2. The status is legal. My J-1 expired at the same time. DS-2019, departmental letter, and so on, everything is OK. We are not subject for 2 years requirement. Are there any tricks/problems in renewing only the J-2, since I stay in US with my expired J-1? Thanks!